There is also the historical significance of opals, given the way they have always been linked to sadness and bad luck. This, I thought, gave a rather delightful frission to the act of eating an Opal Fruit: a sickly-sweet treat mostly enjoyed by children, the traces of subversion in the name suggesting the disappointment inherent in their future existance - perhaps even a subtle hint that within them lay the gateway to diabetes and obesity.
Stars have long been tainted with their association with pop culture; not only the habit of referring to any ex-page 3 girl with a series on cable TV as a 'star' (when the epithet is clearly only deserved of a very small segment of the celebrity population), but also with their overuse in middle-of-the-road pop songs: stars in you lover's eyes, nights under the stars, reaching for the stars, etc.
The cosmos is remote, distant, inspiring dreams but never consumption; opals are, in fact, probably seen less often, mostly in the form of antique jewellery, but can be obtained easily enough by anyone who can afford them.
It could well be this unwise rebranding, not the now-legendary (and possibly exaggerated) baby milk scandal, or the government's ridiculous 'war on obesity' (and I ask you, how sucessful are the similar 'wars on drugs' that are promised every time more votes are needed?) that led to Nestle's recent business troubles
That, and the repackaging of the Kit Kat, of course. In inner-city areas, it is well-known that Kit Kats are perfect junkie sustinence: cheap enough to afford even when you can't scrape together the money for a ten-bag, high enough in calories to keep your body from getting too addict-skinny, and the foil left over could be used for cooking up in. And now, they are packaged in plastic for 'freshness', ie. saving Nestle money - not nearly so fun to eat (running a nail down the central crease being one of life's little pleasures), worse for the environment (totally unrecyclable), and, of course, foil-coated plastic is totally useless for rebuilding your crack pipe.